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Finding the Third Proportional to 21,238.25 and 29,705

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Solution

The third proportional to 21,238.25 and 29,705 is: 41,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238.25 : 29,705 = 29,705 : x
  2. Step 2: Convert to fraction form
    21,238.25/29,705 = 29,705/x
  3. Step 3: Cross multiply
    21,238.25x = 29,705 × 29,705
  4. Step 4: Simplify right side
    21,238.25x = 882,387,025
  5. Step 5: Solve for x
    x = 882,387,025/21,238.25
  6. Step 6: Final answer
    x = 41,547.07

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.